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https://issues.apache.org/jira/browse/ASTERIXDB-1560?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15406529#comment-15406529
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Yingyi Bu commented on ASTERIXDB-1560:
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>>That actually raises an orthogonal issue - perhaps we should (someday) add
>>ANY as a supported typename and then you wouldn't need two separate
>>mechanisms.
+1 :-)
> Misleading SQL++ error message when variables are undefined
> ------------------------------------------------------------
>
> Key: ASTERIXDB-1560
> URL: https://issues.apache.org/jira/browse/ASTERIXDB-1560
> Project: Apache AsterixDB
> Issue Type: Bug
> Components: AsterixDB, Error Reporting
> Reporter: Michael J. Carey
> Assignee: Yingyi Bu
> Priority: Minor
>
> This query:
> SELECT u.name AS uname, m.message AS message
> FROM GleambookUsers u
> UNNEST GleambookMessages m
> WHERE m.authorId = user.id;
> Yields this error message:
> Cannot resolve ambiguous alias (variable) reference for identifier user
> [AlgebricksException]
> The reference is undefined, not ambiguous, in this case.
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